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  1. Ok… what type of knocking? is it a single big knock or bouncing knock knock does it sound sharp and harsh or more dampened and springy is it only under braking or can it happen going over small speed bumps at low speed. does it come from the middle or sides of the car? with a passenger in the back seat so they can put their head out the window each side and tell which is louder. Go over a speed bump forwards then backwards. turn the wheels and look at the lower alloy arm rear rubber bush for cracks. Phone camera will show cracks better than you can see. a tire iron or crow bar applying a bit of force under then can show cracks better. its a common failure on the 2007-2013 until them swapped to ball joints. Whiteline did do balljoints for Motorsport use that pretty much like factory ones. bushes are reasonably easy to get eg BNT or others have replacements https://whiteline.com.au/search/popular-parts-for-subaru-impreza-2008-wrx-sti-gr-hatch/front-control-arm-lower-inner-rear-bushing-double-offset-kit-to-suit-subaru-forester-impreza-lib-9986-kca334.html https://whiteline.com.au/search/popular-parts-for-subaru-impreza-2008-wrx-sti-gr-hatch/front-control-arm-lower-inner-rear-bushing-kit-to-suit-subaru-forester-impreza-liberty-outback-9986-w53353.html
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  2. Does it do it if you just coast to a stop without braking? What about if you use the handbrake to stop?
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  3. Is it like a single knock as something moves forward when you brake or a repeated knock/clunk when doing so?
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  4. EThrottle cars don't have a IACV. They just open the throttle a bit when they need more air. So, uh, the spark plugs. How many did you pull out? And if you pulled them out to inspect them, why didn't you just put new ones in? "Rough idle. Haven't changed my plugs. Any suggestions?" Yeah I've got one I can think of...
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  5. Haha updating the last post to say that after two and a half weeks of being down I got my car sorted last night. I decided to order an aftermarket turbo inlet from Pro Speed Racing in Australia. I also picked up the turbo elbow gasket and bought some intake gaskets too. My old intake gaskets were the ones where they basically glued some silicone rings to some shim-stock, so I got some thick Radium ones. Fitment of the new turbo inlet isn't ideal as I was having a battle getting some sharply milled barb fittings onto some old and stiff vacuum lines (mainly the PCV/breather ones). No one near me had the large PCV hose only the smaller stuff. Its a little crooked at the turbo but its engaged, clamped and not leaking as far as I can tell. Its nice to have a quiet car again. Those old little Corollas are loud AF at highway speeds.
    1 point
  6. I cant find excatly where I got the clearances, but it was in a subaru service manual, what I wrote in my book Rotor tips std 0.04 - 0.14 max 0.18mm Outer rotor to body 0.02 - 0.07 max 0.15mm Rotor height to bolt on cover (can measure this with a staight edge) 0.1 - 0.175 max 0.2mm Mine was just under the std upper limit with no visable damage, so good enough for me They just did the work mentioned and it was $475, I checked the journals myself I just got the bill for my heads today, strip and clean, regrind/cut the valves, then reset the valve lash and install new stem seals on reassembly, and surfacing, boths head it was $1200 And Ive spent about $730 at rock auto for bearings, rings, timing kit, full gasket kit and a couple little extra bits! Hope thats helps
    1 point
  7. Big week for the tinkering. Pulled the manifold today. Got the valve deleted, valve cut out and the pipe blocked. The PBMS plate and the exhaust gasket probably have 1mm overlap at the worst but I think it will hold The only casualties were a turbo inlet that was probably borked anyway and a turbo elbow gasket that broke from my carelessness. Ill inquire about those parts tomorrow, Ill probably just get an acceptible condition used OEM replacement inlet. I have also had poor luck with wheel bearings having had a sound quickly develop in the front, in the last week. Lifted one wheel, noisy spin, replaced hub. Test drive, sound persists but its just quiet enough with one new bearing to hear the other one get louder and sharper pitched in the turns you'd expect. Ill have to replace it tomorrow, its disassembled already. Im YOLOing it and going aftermarket with GSP ones from BNT for now more because I can walk in and buy them. Thank god I have a Corolla for emergencies. The big goal is to have it back together to cruise somewhere with Mrs Boltonator for Valentines day.
    1 point


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